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Data as of Nov 3, 2026

75.7.66.0/23

No anonymizer space · no proxy exits in 30 days

IsoTropic Networks, Inc. · space held by AT&T Enterprises, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS36426
Type
Internet provider
Risk
0 / 100 · Low
Recent change
New origin Oct 10, 2026
its first announcement on record

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
75.7.64.0/21
since Jun 2011
AS36426Internet providerAT&T Enterprises, LLC
75.4.0.0/14
since Dec 2017
AS7018Residential1,729
184 always on
AT&T Enterprises, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
75.3.192.0 - 75.22.191.2551,245,184SBCIS-SBIS-6BLKAT&T Enterprises, LLC (AEL-360) · USDirect AllocationFeb 28, 2006[email protected]
└ 75.7.64.0/212,048SBC07500706400021060321122709IsoTropic Networks, Inc (C01311385) · USReassignedMar 21, 2006[email protected]
via SBCIS-SBIS-6BLK

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
AT&T Enterprises, LLC
Handle
AEL-360
Range
75.3.192.0 - 75.22.191.255
Registration type
Direct Allocation
Record created
Feb 28, 2006
Origin network

AS36426

US
Name
IsoTropic Networks, Inc.
Type
Internet provider
Registered
May 13, 2010
Domain
isosat.net
Industry
Satellite Communication
Spamhaus ASN-DROP
not listed